Safety officials say a spot inspection of a bus attempting to cross the border from San Diego to Mexico earlier this month set off an investigation after 17 serious safety defects were found.

Its Good Promotion officials could not be reached for comment Saturday.

The company's office phone has been disconnected and a message left at a company official's home was not immediately returned. The company owner, John Andrew Ciego of Los Angeles, declined to speak with a KPCC reporter.